One vertex per element, one color per generator, with an edge from x to x·s.
(5,6,9,8)(7,11,12,10)(13,14)(15,19)(16,18)(17,20)(21,22,25,28,24,26,32,35)(23,29,31,34,30,36,33,27)(1,2)(3,4)(5,7)(6,10)(8,11)(9,12)(13,15,16,20)(14,17,18,19)(22,26)(23,30)(28,35)(31,33)(2,4)(5,8,9,6)(7,11,12,10)(14,18)(17,19)(7,12)(10,11)(15,20)(17,19)(21,23,24,30)(22,27,26,34)(25,33,32,31)(28,36,35,29)A Cayley diagram is a choice, not a fact about the group. Another drawing of this group — in a book, or on a different generating set — may look nothing like this one.